Real Analysis: convergence and divergence

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sprstph14
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Homework Statement


Suppose [tex]\sum <sub>n</sub>[/tex] converges and an is greater than 0 for all n. Show that the sum of 1/an diverges.

Homework Equations





The Attempt at a Solution

 

Discussion

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I assume you mean Σan.

What are your thoughts? What do you know about an? What have you tried?
 

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